Charles wies



(No Model.)

C. WIES.

VISE. 1 No. 460,613. Patented Oct. 6, 1891.

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@pi/wow@ (q1/wenken ls :vans co1, mortal-rnc., wAsumun-m n c UNITEDSTATES PATENT OFFICE.

CHARLES IVIES, OE FAULKTON, SOUTH DAKOTA, ASSIGNOR T() JAMES M.

' LOOKEY, OF SAME PLACE.

VISE.

SPECIFICATION forming part of Letters Patent No. 460,613, dated October6, 1891.

4 Application filed May 5, 1891. Serial No. 391,672. (No model.) y

accompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

This invention relates to smiths vises; and it has for its object toprovide a vise that can be quickly and readily adjusted to the size ofthe article to be held and that will at one operation of the handle fixthe movable jaw in the located position and press it forward to graspthe article placed between the two jaws.

Theimprovement consists, essentially,of an expansible burr and anexpanding shaft, the burr being movable on and carried by the shaft,which is connected with the movable jaw.

The improvement also consists in the details of construction and thecombination of the parts,which will hereinafter be more fully describedand claimed, and which are shown in the accompanying drawings, in which-Figure lis a side view of a vise embodying my improvements, parts beingbroken away to show the structural arrangement of the parts. Fig. 2 is across-section of the guide and the shank, respectively, of the fixed andthe movable jaws, showing the co-operative relation of the shaft and theexpansible burr. Fig. 3 is a detail perspective view of the expanding ortapering end of the shaft and the expansible burr, the parts being shownas detached and separated, but arranged in their relative positions.

The vise is of usual construction so far as the fixed jaw A with itsguide B and the movable jaw O with its shank D are concerned. The shaftE is journaled in the shank D in the ordinary manner, being held thereinby the head at one end, through which the handle F passes, and the pinf. The shank D works in the guide B in the well-known manner andsupports and steadies the movable jaw O in its several movements. sibleburr G is mounted on the inner end of the shaft E, and said end (theexpanding end of the shaft) and the burrare mutually constructed,whereby a rotation of the said shaft will expand the burr to cause it toengage with the sides of the guide B and at the same timeadvance theshaft to bring the jaws A and C into closer relationship to firmly graspthe object placed between the said jaws. The expansible burr isconstructed in sections, which are correspondingly threaded on theirinner sides, and the expanding end e of the shaft is correspondinglythreaded to coact with the threads on the said sections to effect thedesired results. The coacting faces of the expansible burr and theexpanding end of the shaft are mutually constructed to cause anexpansion of the said burr the instant the shaft is rotated. In thedrawings the expanding end of the shaft is shown as tapering and theopening in thev burr of corresponding taper. Obviously, other forms ofconstruction may be devised to effect the desired result, and I do notrestrict myself to the particular construction shown, which, however, ispreferred.

The burr may comprise as many sections as is found necessary, threebeing found to give the best results. The sections H and I are similarlyconstructed, being rights and lefts, and embrace the sides and thebottom of the shaft. lThe upper ends of the sections I-I and I are cutaway, and mitered, and the space thus formed is filled by thewedgeshaped section J. The several sections have projections at eachend, which, when the sections are assembled, form an annular flange g ateac-h end of the burr. The iiange g is Agrooved, and a spring K issprung in the groove to hold the sections together and compress themwhen the expanding end of the shaft is withdrawn or turned back. of theburr are uted or otherwise roughened and the sides of the inner walls ofthe guide B are correspondingly luted or roughened to cause a positiveengagement between the burr and the guide when the burr is expanded. Theinterlocking projections formed on the The sides The expan- ICO opposing sides of thebu rr and the guide should be sufhciently deep to permit acontinued expansion of the burr as the movable jaw is pressed forward.

The operation of the vise is as follows: The burr, after its severalparts have been assembled and held together by the springs K, is mountedon the expanding end of the shaft. and adjusted with reference to thesaid shaft and the guide, so that under normal condi' tions the movablejaw (l can be readily and easily moved to and from the fixed jaw, andwhen adjusted to the required position a turn of the shaft will causethe burr to ex pand and engage with the sides of the guide and at thesame time press the movable jaw forward an d clamp the object placedbetween the two jaws. To release the obj ect, the shaft is turned in thereverse direction, to move the jaw C away from thejawA and withdraw theexpanding end of the shaft sufficiently far to permit a disengagement ofthe burr from the guide when the jaw C is free to be moved either in orout.

Having thus described my invention, what I claim to be new, and desireto secure by Letters Patent, is

I. In a vise, the combination, with the fixed and the movable jaws, ofan expanding shaft and an expansible burr mutually constructed to effectan expansion of the said burr on operating the said shaft, substantiallyas and for the purpose described.

2. In a vise, the combination, with the fixed and the movable jaws, thesides of the guide of the fixed jaw having interlocking projections, ofthe expanding shaft and the expansible burr, thelatter beingcorrespondingly constructed to positively engage with the interlockingprojections on the guide on being expanded by the said shaft,substantially as dcscribed, and for the purpose specified.

3. In avise, the combination, with the fixed and the movable jaws, ofthe expansible burr composed of sections and the expanding shaft,substantially as set forth.

In a vise, the combination, with the fixed and the movable jaws, of theexpanding shaft,

the expansible burr, and a spring to effect a compression of the burr,substantially as and for the purpose described.

5. In a vise, the combination, with the fixed and the movable jaws, ofan expanding shaft, an expansible burr constructed in sections, eachsection having a projection at each end to form end projections when thesections are assembled, and springs sprung around the said projections,substantially as and for the purpose set forth.

6. In a vise, the combination, with the fixed and the movable jaws, ofan expandingshaft, an expansible burr composed of sections, each sectionhaving end projections, which, when the sections are assembled, formannularproj ections, which are grooved, and springs sprung in the saidgrooves, substantially as described, and for the purpose specified.

7. In a vise, the combination, with the fixed and the movable jaws, ofthe shaft having a tapering end and the expansible burr mounted on thesaid tapering end and having a oo rresponding tapering opening, theopening in the burr being correspondingly threaded, substantially asdescribed, and for the purpose specified.

8. In a vise, the combination, with the fixed and the movable jaws, ofthe expanding shaft and the expansible burr, the latter comprising sidesections II and I, which are cutaway and initered at one end, and awedge-shaped section J, substantially as and for the pui'- pose setforth.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES VIES.

Vitnesses:

liffARK PURDY, I. II. WILSON.

